3:06pm
Messages showed Letby wanted to 'throw myself back in' to the neonatal unit -
She said that meant getting back in to looking after babies as that was what she was taught at Liverpool Women's.
The messages included Letby saying: "From a confidence point of view, I need to take an ITU baby soon."
Sophie Ellis, a band 5 nurse - not intensive care unit trained - was supported by a band 6 nurse that night shift to be the designated nurse for Child C that night in room 1.
At the start of the night shift, there was a hope to start Child C on feeds.
He was "pink, well perfused, active and alert".
At 10.34pm, Letby said she had 'done a couple of meds in 1', and believed Sophie Ellis didn't have the skill in caring for premature babies.
Sophie Ellis was alerted to Child C's desaturation.
She said she had been alerted to the desaturation by Letby, who had said 'he's just dropped his HR and saturations'.
This was something she had not put in the nursing notes, but something she said to police.
She said she did not do so at the time as it was ultimately a traumatic event.
She said she didn't do anything to Child C, and didn't see anything being done to him.
Letby was "stood at the incubator at the far side".
A nursing colleague said she believed she saw Melanie Taylor and Sophie Ellis by Child C.
Child C was not breathing, "very blotchy", and was not aware if Letby was in the room.
Melanie Taylor said in evidence when she approached the incubator, Letby was already there.
She said in police interview, she was in room 1 feeding another baby, and was called over by Sophie Ellis, not mentioning Letby.
Letby said she had "very little independent memory" of events.
She said she had given evidence on Child C's collapse having been "placed" there in the room by Sophie Ellis' account.